I have test procedure to evaluate the clarity of a sodium hydroxide (NaOH) sample that goes like this: Dissolve 10g of NaOH in carbon dioxide free water and dilute to 100ml with the same solvent. Please explain how to perform this test. ...
产品简介:TMA-PEG-TMA is a high molecular weight polymer with good solubility and stability. It can dissolve in both organic solvents and water, and remains stable at different pH values. TMA-PEG-TMA has good biocompatibility. Due to the presence of PEG molecules, they can interact with variou...
Why does gasoline not dissolve in water? Compare electricity conductivity of copper and aluminum and give the reason for your answer. Explain how holes conduct electricity. Determine whether the statement describes a physical or chemical property: c) graphite is a soft, black solid ...
Articulated coralline algae (ACA) had higher consumption in Gravatá than the Matadeiro site for both species. This difference was possibly responsible for the difference in the organic matter index (OMI) (higher in the Matadeiro). As they have calcified cortex (Littler and Littler, 2000), ...
(c) McGraw Hill Ryerson 2007 Many familiar compounds are acids or bases. –Lemon juice, soap, oranges, pop… Acids and bases can be very dangerous. –Both can be very corrosive. NEVER try to identify an acid or base by taste or touch! See pages ...
The formation of sinking particles in the ocean, which promote carbon sequestration into deeper water and sediments, involves algal polysaccharides acting as an adhesive, binding together molecules, cells and minerals. These as yet unidentified adhesive
Adding olive oil to the diet has other advantages as well. There has been interest in the health benefits of olive oil for some time, but not usually with a focus on colon cancer. The cardiovascular benefits of diets higher in olive oil are well established in improving the ratio of good...
(argon, krypton, xenon, chlorine, hydrogen sulfide, hydrocarbons, and others) not only dissolve in water but also form crystal hydrates. In particular, propane at 10° C and 0.3 meganewtons per sq m (MN/m2), or 3 kilograms-force per sq cm (kgf/cm2), yields the crystal hydrate C3H8-...
Which of the following statements is correct? A. Solutes increase the freezing point of water. B. Solutes decrease the freezing point of water. C. Only ions can dissolve in the body water. D. Increasing the concentration of water E. Will increase the ...
Explain why chemical compounds tend to dissolve more quickly in hot solvent than in cold solvent. Explain why the following organic compound cannot exist. 3-hexanoic acid Explain why cationic polymerization is an effective method of polymerizing CH_2=C(CH_3)_2 but...